1. clear liquid produced in the ventricles of the brain; fills and protects cavities in the brain and spinal cord; [syn: spinal fluid, cerebrospinal fluid]
WordNet (r) 3.0 (2006):
spinal fluid
n 1: clear liquid produced in the ventricles of the brain; fills
and protects cavities in the brain and spinal cord [syn:
spinal fluid, cerebrospinal fluid]